title: Cumulative permanent environmental effects for repeated records animal models.
abstract: The assumption of a single permanent environmental (PE) effect contributing to every record made by an animal is questioned. An alternative model where new PE effects accumulate with each record made by an animal is proposed. An example is used to illustrate the differences between the traditional model and the proposed model.
authors.affiliation: Department of Animal & Poultry Science, Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada. lrs@uoguelph.ca
authors.forename: L R
authors.initials: LR
authors.lastname: Schaeffer
mesh_terms: D000818:Animals; D004777:Environment; D023421:Models, Animal; D008957:Models, Genetic; D011996:Records